Dimensions: Screw Diameter .195" - Head Width 0.266" - Head Height .133" Use T20 Torx/Star Diver Bit 10 Degree Diminishing Head and Reversing Threads to Prevent Mushrooming Dual Threaded (fine/coarse) Assists With Cutting Through Fibrous Decking Material Type 17 Tip for Fast Starts, Helps Eliminate "Walking" and Easier Installation without Pre-Drilling Heat Treated - Hardened Steel - 1200 hours of Salt Water Testing of Exterior - Corrosion Resistant Uses Include Cap Stock, PVC and Composite Decking, Composite Fascia and Composite Railing10 x 1-3/4" WALNUT Composite Decking Screws. Exterior Coated, Pressure Treated and ACQ Lumber Compatible. Use T20 Torx/Star Dive Bit - 1 POUND ~130 Screws ‚úîDimensions: Screw Diameter .195" - Head Width 0.266" - Head Height .133" Use T20 Torx/Star Diver Bit ‚úî10 Degree Diminishing Head and Reversing Threads to Prevent Mushrooming ‚úîDual Threaded (fine/coarse) Assists With Cutting Through Fibrous Decking Material ‚úîType 17 Tip for Fast Starts, Helps Eliminate "Walking" and Easier Installation without Pre-Drilling ‚úîUses Include Cap Stock, PVC and Composite Decking, Composite Fascia and Composite Railing Please keep in mind when choosing the screw color to match your decking that due to differences in computer screens, in decking production runs, and color batching, the color you order and the color of your decking may vary to some degree